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© 2026 cohaga AG · All Rights Reserved · St. Gallen, Switzerland · Imprint747,212 companies indexed · Last updated: today
DirectoryCrafts & TradesAir conditioningZurich4Plus Service AG
4Plus Service AG Logo
Verified· 2 sourcesTrust Score
Summary

About the company

4Plus Service AG provides services for heating, ventilation, air conditioning and plumbing systems. Its work includes consultation and planning, new construction and renovations, as well as maintenance, servicing, repairs and fault analysis.

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Presence

Service area

Offering

Products & services

Industry:Air conditioningHeating installer
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4.1/5

4Plus Service AG

Plumber
✓ Offered4
Heating
Advisory and planning, service and maintenance, new builds and renovations, repairs and problem analysis for heating systems.
Plumbing
Advisory and planning, service and maintenance, new builds and renovations, repairs and problem analysis for plumbing fixtures and water installations.
Ventilation
Advisory and planning, service and maintenance, new builds and renovations, repairs and problem analysis for ventilation systems.
Air conditioning
Advisory and planning, service and maintenance, new builds and renovations, repairs and problem analysis for air-conditioning systems and indoor climate.
Trust & reputation

ranQ Trust Score of 4Plus Service AG: 4.1 out of 5.0

Trust Score4.1/ 5.0

High

x

Data basis 54% · As of November 2026

Without public customer reviews the score stays capped.

4Plus Service AG has no value in the Reputation area of the ranQ Trust Score because no data is available. The area carries 42% of the weighting and drops out of the calculation for this profile; it does not lower the score, only the reported data basis.
x
CriterionValueWeight
  • Review quality: No data point — the criterion is taken out of the weighting and does not lower the score.—24%
  • Review volume: No data point — the criterion is taken out of the weighting and does not lower the score.—10%
  • Review recency: No data point — the criterion is taken out of the weighting and does not lower the score.—8%
4Plus Service AG scores 81.1 out of 100 points in the Substance area of the ranQ Trust Score. This area carries 28% of the weighting.
x
CriterionValueWeight
  • Establishment: Years since founding or brand launch, logarithmic. The maximum is reached at 15 years.89.612%
  • Company size: The headcount band, researched by ranQ or stated by the company. It is scored in steps rather than by head count, because the data only provides bands.55.07%
4Plus Service AG scores 85.0 out of 100 points in the Identity area of the ranQ Trust Score. This area carries 22% of the weighting.
x
CriterionValueWeight
  • Verification: Official register entry (commercial register with UID or professional-body record, 55 points), confirmed domain (20 points) and confirmed ranQ profile (up to 25 points, depending on completeness).85.022%
4Plus Service AG scores 17.1 out of 100 points in the Visibility area of the ranQ Trust Score. This area carries 8% of the weighting.
x
CriterionValueWeight
  • Website authority: Ahrefs' Domain Rating measures, on a scale of 0 to 100, how strongly a website is linked from other websites. For Swiss SMEs the range up to 40 is typical; the maximum is reached at 35.17.14%
  • Media authority: No data point — the criterion is taken out of the weighting and does not lower the score.—4%
Qualifications+0.00

4Plus Service AG reaches a ranQ Trust Score of 4.1 out of 5.0 — rated «High». No public customer reviews are available for this provider; the rating is based on the remaining criteria. The data basis is 54%, so the score is backed by part of the criteria. As of November 2026.

The Trust Score cannot be bought and is calculated from publicly verifiable data.

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Location

Thurgauerstrasse 60
8050 Zurich

At a glance

Legal form
Corporation
UID
CHE-270.711.403
Founded
2015 · 11 years
Last commercial register change
June 14, 2024
Employees
1 to 10

Active in 1 of 26 cantons · 23 municipalities

  • Bezirk Bülach
  • ZHZurich
Legal form: Graded by liability and disclosure. The weight is kept small: a sole proprietorship is not a dubious company, it is just liable differently.
100.0
6%
  • Branch offices: Branch offices linked in the commercial register. Having none is normal and costs no points.70.03%
    • Full methodology

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